HILLIARD, Ohio (WSYX/WTTE) -- A former Hilliard Davidson High School sophomore accused of conspiring to kill his classmates is back home after a juvenile court judge agreed to his release.

A probable cause hearing for John Staley, 16, was held Monday after prosecutors filed a motion to certify him as an adult in the attempted murder case.

Prosecutors filed charges against Staley last October after they said they found gas masks, tactical vests and ammunition as his home.

Prosecutors said he researched school shootings, Neo-Nazis and gunmaking online and recruited other students to help in the plot.

Prosecutors argued Staley should stay in detention after he's already spent six months in juvenile detention because they do not know if he's still a threat to society. They also voiced concerns of his restriction of house arrest and electronic monitoring as they maintain an ankle monitors did not stop high profile murder suspect Brian Golsby from committing his own crimes while on parole.

Staley's attorney said he's done well in detention and has done everything asked of him. He said Staley is not a threat as an adult and his mother will be supervising him 24 hours a day.

"He's a boy. He was a boy when this thing happened six months ago. He's still a boy. He's scared and he's ready to get home to his family," said defense attorney Stephen Palmer.

The next hearing in Staley's case will be held next month to determine if it should stay in juvenile court or be bound over to adult court.